Hidden problems in precise calibration on microstrip II explanation and solution

Author

Hoffmann, Karel ; Raboch, Jiri

Author_Institution

Czech Tech. Univ. in Prague, Prague, Czech Republic

fYear

2011

fDate

1-2 Dec. 2011

Firstpage

1

Lastpage

5

Abstract

A study of calibration problems on microstrip with respect to interaction of electromagnetic fields around coaxial to microstrip launch, microstrip line and microstrip calibration standards was carried out in frequency band up to 26 GHz. Omni Spectra SMA to microstrip launch, 50 Ω microstrip line on Arlon CuClad 233 0.508 mm thick substrate and microstrip short, open and load as calibration standards were used for simulations in CST Microwave Studio. Multimode propagation in the whole structure making impossible application of standard calibration methods was discovered. A hardware solution enforcing only one mode propagation was designed and tested using a simulation testing method similar to standard calibration/verification procedure. Radical suppression of measurement uncertainties was achieved.

Keywords

calibration; electromagnetic fields; measurement uncertainty; microstrip lines; Arlon SMA CuClad 233; CST Microwave Studio; electromagnetic fields; measurement uncertainty; microstrip II explanation; microstrip calibration standards; microstrip line; multimode propagation; omni spectra SMA; simulation testing method; size 0.508 mm; Calibration; Electromagnetic waveguides; Fixtures; Measurement uncertainty; Microstrip; Microwave measurements; Microwave theory and techniques; Calibration; microwave measurement; radiation effects; scattering parameters; uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Measurement Symposium (ARFTG), 2011 78th ARFTG

Conference_Location

Tempe, AZ

Print_ISBN

978-1-4673-0280-7

Type

conf

DOI

10.1109/ARFTG78.2011.6183879

Filename

6183879